WO2006108626A1 - Sustained energy release compositions - Google Patents

Sustained energy release compositions Download PDF

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Publication number
WO2006108626A1
WO2006108626A1 PCT/EP2006/003357 EP2006003357W WO2006108626A1 WO 2006108626 A1 WO2006108626 A1 WO 2006108626A1 EP 2006003357 W EP2006003357 W EP 2006003357W WO 2006108626 A1 WO2006108626 A1 WO 2006108626A1
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WO
WIPO (PCT)
Prior art keywords
glucopyranosyl
tetritol
energy release
erythritol
feed
Prior art date
Application number
PCT/EP2006/003357
Other languages
French (fr)
Inventor
Ronny Leontina Marcel Vercauteren
Els Ginette Alexander Dendooven
Original Assignee
Cargill Inc.
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Publication date
Application filed by Cargill Inc. filed Critical Cargill Inc.
Priority to BRPI0608174-6A priority Critical patent/BRPI0608174A2/en
Priority to EP06761896A priority patent/EP1868450B1/en
Priority to DE602006007969T priority patent/DE602006007969D1/en
Priority to JP2008505802A priority patent/JP2008545620A/en
Priority to US11/911,649 priority patent/US20080206423A1/en
Priority to PL06761896T priority patent/PL1868450T3/en
Publication of WO2006108626A1 publication Critical patent/WO2006108626A1/en

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/52—Adding ingredients
    • A23L2/60—Sweeteners
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/163—Sugars; Polysaccharides
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/30—Artificial sweetening agents
    • A23L27/33—Artificial sweetening agents containing sugars or derivatives
    • A23L27/34—Sugar alcohols
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/30—Foods or foodstuffs containing additives; Preparation or treatment thereof containing carbohydrate syrups; containing sugars; containing sugar alcohols, e.g. xylitol; containing starch hydrolysates, e.g. dextrin
    • A23L29/37—Sugar alcohols
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/20—Reducing nutritive value; Dietetic products with reduced nutritive value
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
    • A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs

Definitions

  • the present invention relates to the use of certain specified carbohydrate materials in the preparation of sustained glucose and energy release food, feed and drink compositions and to compositions containing such materials.
  • Carbohydrates are formed of monomer units such as glucose, fructose and galactose. Many carbohydrates are linked to each other by ⁇ -l,4-glucosidic bonds that are easily hydrolysed during the early stages of digestion in both humans and animals (i.e. in the mouth, stomach and small intestine). Examples of such carbohydrates include the commercially available hydrolysis products of starch, such as maltose and maltodextrins. It is common knowledge that oral ingestion of such carbohydrates leads to a rapid increase in blood glucose concentration and therefore to an elevated insulin response. This is typically followed by a sharp decrease in blood glucose and, because insulin levels remain high, can result in so called "rebound hypoglycaemia". Symptoms of hypoglycaemia include nausea, weakness, hallucinations, headaches, hypothermia and fainting.
  • hypoglycaemia blood glucose
  • tissue insulin sensitivity tissue insulin sensitivity
  • Such prolonged hyperglycaemia induces undesired effects on metabolism in the body often referred to as metabolic syndrome, a combination of several disease risk factors such as elevated blood pressure, impaired glucose tolerance, elevated fasting blood glucose and impaired blood lipid levels, often together with weight gain. Being exposed to these risk factors is known to lead to a significant increase in morbidity and mortality.
  • carbohydrate compounds that can be safely ingested whilst retaining the desirable properties (such as sweetness) of more conventional carbohydrates (e.g. glucose, maltose, maltodextrins and sucrose).
  • a number of high intensity sweeteners have been proposed for helping to reduce the increase in blood glucose, when being substituted for absorbable glucose sources, including, for example, aspartame, saccharin, sucralose or cyclamate.
  • these sweeteners cannot be used as effective sources of glucose and energy required for maintenance of a normal cellular function of the central nervous system and red blood cells.
  • a consistent supply of glucose is an important characteristic, e.g. in nutritional compositions used by highly active people (such as sports men and women) or by certain categories of patients that have a particularly high energy turnover (burn patients, for example).
  • the problem to be solved by the present invention is therefore the provision of a carbohydrate material that does not cause rebound hypoglycaemia whilst nevertheless having high sweetness and being a consistent source of glucose and energy.
  • Proposed solutions include carbohydrates such as isomaltulose, certain dextrans and pullulan. All of these carbohydrates, however, have a number of drawbacks. Taking isomaltulose by way of example, although its digestion results in a slow release of glucose into the blood it only has a relatively low sweetness (42% the sweetness of sucrose), it is not very heat or acid stable (stability being a particularly desirable characteristic for compounds used in food compositions) and it has a relatively high Maillard reactivity (meaning that it can lead to undesirable browning).
  • the present invention therefore aims to provide an alternative to these known, slow- release carbohydrates which does not suffer from the drawbacks associated with the prior art.
  • a glucopyranosyl tetritol in the preparation of a sustained energy release food, feed or drink composition.
  • a sustained energy release food, feed or drink composition characterised in that it comprises a glucopyranosyl tetritol.
  • a process for the preparation of a sustained energy release food, feed or drink composition characterised in that it comprises the step of adding a glucopyranosyl tetritol to said composition.
  • Figure 1 shows the in-vitro digestibility of O- ⁇ -D-Glucopyranosyl erythritol obtained according to Example 3.
  • the present invention provides, in a first aspect, the use of a glucopyranosyl tetritol in the preparation of a sustained energy release food, feed or drink composition.
  • Glucopyranosyl tetritols are carbohydrate compounds composed of a glucose unit and C4 sugar alcohol unit.
  • Sugar alcohols also known as polyols
  • They have the general formula C n H 2n+2 O n . - A -
  • the glucopyranosyl tetritol of the present invention will preferably be selected from the group consisting of glucopyranosyl erythritol, glucopyranosyl D-threitol, glucopyranosyl L-threitol and mixtures of two or more thereof. Most preferably, the glucopyranosyl tetritol will be glucopyranosyl erythritol, preferably in the form O- ⁇ - D-glucopyranosyl erythritol.
  • O- ⁇ - D-glucopyranosyl erythritol can exist as 1-O- ⁇ -D-glucopyranosyl erythritol (when the glucose unit is linked to the primary alcohol group of erythritol) or as 2-0- ⁇ -D- glucopyranosyl erythritol (when the glucose unit is linked to the secondary alcohol group of erythritol).
  • the glucopyranosyl tetritols of the present invention will be in their primary form (i.e.
  • the glucopyranosyl tetritol of the present invention will be 1-O- ⁇ -D-glucopyranosyl erythritol.
  • Glucopyranosyl sugar alcohols such as glucopyranosyl erythritol
  • Glucopyranosyl sugar alcohols are known in the art. They were thought, however, to be indigestible or only very slightly digestible. They were therefore characterised as being low calorie compounds (see EP0404964, for instance) with only a small proportion of the glucose units ingested being released into the blood-stream.
  • glucopyranosyl tetritols, and glucopyranosyl erythritol undergo a slow but total or near- total hydrolysis in the small intestine resulting, for several hours after ingestion, in a continuous low-level release of glucose into the blood. This effect is referred to herein as "sustained energy release”.
  • the present invention further provides a sustained energy release food, feed or drink composition characterised in that it comprises a glucopyranosyl tetritol.
  • a sustained energy release food, feed or drink composition characterised in that it comprises a glucopyranosyl tetritol.
  • compositions could be used, for example, to deliver carbohydrates to diabetic patients without causing clinically significant hyperglycaemia. They could also be added to the diet of overweight or elderly people suffering from reduced glucose tolerance. In the domain of sports nutrition, glucopyranosyl tetritols could be used to supply athletes with a steady and constant carbohydrate supply during physical exercise. They could also be used in foods or supplements for growing children and in so-called “energy drinks” or “energy bars”. This is, of course, a non-exhaustive list and many other potential embodiments of the present invention will be apparent to the skilled person.
  • the present invention provides a process for the preparation of a sustained energy release food, feed or drink composition characterised in that it comprises the step of adding a glucopyranosyl tetritol to said composition.
  • the glucopyranosyl tetritol will typically be added in an amount of at least 5% by weight. Preferably, it will be added in an amount of at least 15%, even more preferably in an amount of at least 20% by weight based on the total weight of the composition.
  • the exact amount to be added will of course depend on various factors - such as type of application (food, feed or drink), target consumer (sports people, young children, diabetics, etc.), desired level of sweetness and caloric value of the final composition, etc. - and will easily be calculated by the skilled person.
  • the glucopyranosyl tetritol may be added to the food, feed or drink composition at any stage during its production.
  • glucopyranosyl tetritols have been found to have a good level of sweetness.
  • the glucopyranosyl tetritol will be added in lieu of or in combination with other carbohydrate materials or sweeteners.
  • glucopyranosyl tetritols can nonetheless be used as a sustained energy release ingredient. Such sustained supply of energy is known to result in hormonal patterns that favour the feeling of fullness (satiation) and induce less hunger.
  • glucopyranosyl tetritols have been found to have good sweetness and low cariogenicity when compared to sucrose. Their ingestion leads to only low glycemic and insulinemic responses and therefore presents a significantly reduced risk, if any, of causing either rebound hypoglycaemia or persistent strong hyperglycaemia.
  • a low insulinemic response is also known to promote a high rate of fatty acid mobilisation from adipose (fat) tissue resulting in a high rate of fatty acid oxidation in energy metabolism (Newsholme E.A., Leech A.R. (eds): Integration of carbohydrate and lipid metabolism. In: Biochemistry for the medical sciences. John Wiley & Sons, Chichester 1983, pp 336-35, Newsholme E. A., Start C. (eds): Adipose tissue and the regulation of fat metabolism. In: Regulation in Metabolism. John Wiley & Sons, Chichester 1973a, pp 195-246).
  • - food, feed and drink compositions aimed at supporting physical and mental performance (e.g. in fitness/sports nutrition, infant nutrition, nutrition for the elderly, in so-called "brain foods” directed, for example, at students or people whose jobs require consistently high levels of concentration and/or alertness such as pilots);
  • - food, feed and drink compositions aimed at individuals requiring slow but continuous carbohydrate energy delivery, for example in conditions that require medical nutrition and/or enteral feeding (e.g. for cachexia patients, burn patients), or for post-operative nutrition;
  • - food, feed and drink compositions aimed at inducing satiety, reducing overall energy intake and/or increasing fat metabolism (e.g. slimming products, drinks for children, etc.); and - food, feed and drink compositions aimed at individuals suffering from particular metabolic disorders (such as diabetes, low glucose tolerance and metabolic syndrome (syndrome X) patients).
  • metabolic disorders such as diabetes, low glucose tolerance and metabolic syndrome (syndrome X) patients.
  • a mixture of 58 g water, 40 g erythritol, 100 g maltose and 2 g of transglucosidase (AMANO) was prepared.
  • the pH was adjusted to 4.6 with hydrochloric acid.
  • the mixture was then heated to 50°C for 24h. After filtration and passing through a strong cation exchanger followed by a weak anion exchanger (elution with demi-water), the syrup was vacuum concentrated to 35% dry substance.
  • the total yield of O- ⁇ -D-glucopyranosyl erythritol was 18% as compared to the starting materials (using HPLC analysis).
  • Example 2 5ml of the mixture obtained in Example 1 was diluted to 25% Brix and loaded on 1.51 Bio-Gel Polyacrylamide P2-fine (BIORAD) resin and eluted with demineralised water at 1.5ml/min at room temperature. 170mg O- ⁇ -D-glucopyranosyl erythritol was obtained at a purity of 86%.
  • the enriched O- ⁇ -D-glucopyranosyl erythritol of Example 2 was used as substrate in in-vitro digestibility studies.
  • 1% substrate solutions (w/w) of maltose (from Merck), isomaltulose (from ICN) and O- ⁇ -D-glucopyranosyl erythritol were prepared in a 0.05 M phosphate buffer at pH 6 and equilibrated at 37°C for 10 minutes.
  • a suspension of 30% rat intestinal acetone powder (supplied by Sigma) was prepared in 0.05M phosphate buffer (from Merck) at pH 6 and equilibrated at 37°C for 10 minutes.
  • 0.6 ml rat intestinal acetone powder suspension was added to 6 ml of each of the substrate solutions and mixed. The mixtures were incubated at 37°C and a 1 ml sample was taken (0 hours incubation time). Further samples were taken after 2, 4 and 6 hours of incubation. The samples were diluted with 4 ml of demineralised water and boiled for 5 minutes. After the denaturation step, each sample was filtered through a 0.45 ⁇ m filter.
  • the filtrate was send through a Dionex OnGuard-ATM filter. Glucose content was determined by HPLC.
  • O- ⁇ -D-glucopyranosyl erythritol is digested, in-vitro, at a substantially lower rated than maltose.
  • the digestion rate is in fact close to that of isomaltulose which is known in the art as being a sustained energy release carbohydrate.

Abstract

There is provided the use of a glucopyranosyl tetritol in the preparation of a sustained energy release food, feed or drink composition and a method of preparing such compositions.

Description

Sustained Energy Release Compositions
Technical Field of the Invention
The present invention relates to the use of certain specified carbohydrate materials in the preparation of sustained glucose and energy release food, feed and drink compositions and to compositions containing such materials.
Background of the Invention
Carbohydrates are formed of monomer units such as glucose, fructose and galactose. Many carbohydrates are linked to each other by α-l,4-glucosidic bonds that are easily hydrolysed during the early stages of digestion in both humans and animals (i.e. in the mouth, stomach and small intestine). Examples of such carbohydrates include the commercially available hydrolysis products of starch, such as maltose and maltodextrins. It is common knowledge that oral ingestion of such carbohydrates leads to a rapid increase in blood glucose concentration and therefore to an elevated insulin response. This is typically followed by a sharp decrease in blood glucose and, because insulin levels remain high, can result in so called "rebound hypoglycaemia". Symptoms of hypoglycaemia include nausea, weakness, hallucinations, headaches, hypothermia and fainting.
Conversely, for some individuals (such as diabetics), an increase in blood glucose (hyperglycaemia) can be maintained for a prolonged period of time.. This occurs when insulin levels are insufficient to stimulate glucose uptake by tissues (resulting in a normalisation of blood glucose) or when tissue insulin sensitivity is impaired. Such prolonged hyperglycaemia induces undesired effects on metabolism in the body often referred to as metabolic syndrome, a combination of several disease risk factors such as elevated blood pressure, impaired glucose tolerance, elevated fasting blood glucose and impaired blood lipid levels, often together with weight gain. Being exposed to these risk factors is known to lead to a significant increase in morbidity and mortality. There is therefore a clear need to develop alternative carbohydrate compounds that can be safely ingested whilst retaining the desirable properties (such as sweetness) of more conventional carbohydrates (e.g. glucose, maltose, maltodextrins and sucrose).
A number of high intensity sweeteners have been proposed for helping to reduce the increase in blood glucose, when being substituted for absorbable glucose sources, including, for example, aspartame, saccharin, sucralose or cyclamate. Unfortunately, these sweeteners cannot be used as effective sources of glucose and energy required for maintenance of a normal cellular function of the central nervous system and red blood cells. Moreover, there are conditions in which a consistent supply of glucose is an important characteristic, e.g. in nutritional compositions used by highly active people (such as sports men and women) or by certain categories of patients that have a particularly high energy turnover (burn patients, for example).
The problem to be solved by the present invention is therefore the provision of a carbohydrate material that does not cause rebound hypoglycaemia whilst nevertheless having high sweetness and being a consistent source of glucose and energy.
Attempts have already been made in the art to address this problem. Proposed solutions include carbohydrates such as isomaltulose, certain dextrans and pullulan. All of these carbohydrates, however, have a number of drawbacks. Taking isomaltulose by way of example, although its digestion results in a slow release of glucose into the blood it only has a relatively low sweetness (42% the sweetness of sucrose), it is not very heat or acid stable (stability being a particularly desirable characteristic for compounds used in food compositions) and it has a relatively high Maillard reactivity (meaning that it can lead to undesirable browning).
The present invention therefore aims to provide an alternative to these known, slow- release carbohydrates which does not suffer from the drawbacks associated with the prior art. Statements of the Invention
In a first aspect of the present invention, there is provided the use of a glucopyranosyl tetritol in the preparation of a sustained energy release food, feed or drink composition.
In a second aspect of the present invention, there is provided a sustained energy release food, feed or drink composition characterised in that it comprises a glucopyranosyl tetritol.
In a third aspect of the present invention, there is provided a process for the preparation of a sustained energy release food, feed or drink composition characterised in that it comprises the step of adding a glucopyranosyl tetritol to said composition.
Brief Description of the Drawings
Figure 1 shows the in-vitro digestibility of O-α-D-Glucopyranosyl erythritol obtained according to Example 3.
Detailed Description of the Invention
As noted above, the present invention provides, in a first aspect, the use of a glucopyranosyl tetritol in the preparation of a sustained energy release food, feed or drink composition.
Glucopyranosyl tetritols
Glucopyranosyl tetritols are carbohydrate compounds composed of a glucose unit and C4 sugar alcohol unit. Sugar alcohols (also known as polyols) are derived from carbohydrates whose carbonyl group has been reduced to a primary or secondary hydroxyl group. They have the general formula CnH2n+2On. - A -
The glucopyranosyl tetritol of the present invention will preferably be selected from the group consisting of glucopyranosyl erythritol, glucopyranosyl D-threitol, glucopyranosyl L-threitol and mixtures of two or more thereof. Most preferably, the glucopyranosyl tetritol will be glucopyranosyl erythritol, preferably in the form O-α- D-glucopyranosyl erythritol.
A number of isomers of each glucopyranosyl tetritol exist, depending on which alcohol group of sugar alcohol the glucose unit is linked to. Thus, for example, O-α- D-glucopyranosyl erythritol can exist as 1-O-α-D-glucopyranosyl erythritol (when the glucose unit is linked to the primary alcohol group of erythritol) or as 2-0-α-D- glucopyranosyl erythritol (when the glucose unit is linked to the secondary alcohol group of erythritol). Preferably, the glucopyranosyl tetritols of the present invention will be in their primary form (i.e. with the glucose unit linked to the primary alcohol group of the sugar alcohol). Accordingly, in a most preferred embodiment, the glucopyranosyl tetritol of the present invention will be 1-O-α-D-glucopyranosyl erythritol.
Sustained energy release
Glucopyranosyl sugar alcohols, such as glucopyranosyl erythritol, are known in the art. They were thought, however, to be indigestible or only very slightly digestible. They were therefore characterised as being low calorie compounds (see EP0404964, for instance) with only a small proportion of the glucose units ingested being released into the blood-stream. In fact, we have now surprisingly found that glucopyranosyl tetritols, and glucopyranosyl erythritol in particular, undergo a slow but total or near- total hydrolysis in the small intestine resulting, for several hours after ingestion, in a continuous low-level release of glucose into the blood. This effect is referred to herein as "sustained energy release".
Thus, the present invention further provides a sustained energy release food, feed or drink composition characterised in that it comprises a glucopyranosyl tetritol. Food, Feed and Drink Compositions
Such compositions could be used, for example, to deliver carbohydrates to diabetic patients without causing clinically significant hyperglycaemia. They could also be added to the diet of overweight or elderly people suffering from reduced glucose tolerance. In the domain of sports nutrition, glucopyranosyl tetritols could be used to supply athletes with a steady and constant carbohydrate supply during physical exercise. They could also be used in foods or supplements for growing children and in so-called "energy drinks" or "energy bars". This is, of course, a non-exhaustive list and many other potential embodiments of the present invention will be apparent to the skilled person.
Process for the preparation of sustained energy release compositions
In a further aspect, the present invention provides a process for the preparation of a sustained energy release food, feed or drink composition characterised in that it comprises the step of adding a glucopyranosyl tetritol to said composition.
The glucopyranosyl tetritol will typically be added in an amount of at least 5% by weight. Preferably, it will be added in an amount of at least 15%, even more preferably in an amount of at least 20% by weight based on the total weight of the composition. The exact amount to be added will of course depend on various factors - such as type of application (food, feed or drink), target consumer (sports people, young children, diabetics, etc.), desired level of sweetness and caloric value of the final composition, etc. - and will easily be calculated by the skilled person.
The glucopyranosyl tetritol may be added to the food, feed or drink composition at any stage during its production. Advantageously, glucopyranosyl tetritols have been found to have a good level of sweetness. Typically therefore, the glucopyranosyl tetritol will be added in lieu of or in combination with other carbohydrate materials or sweeteners. Advantages of the Invention
It has surprisingly found that, despite not causing any sudden sharp increase in blood glucose concentration, glucopyranosyl tetritols can nonetheless be used as a sustained energy release ingredient. Such sustained supply of energy is known to result in hormonal patterns that favour the feeling of fullness (satiation) and induce less hunger. In addition, glucopyranosyl tetritols have been found to have good sweetness and low cariogenicity when compared to sucrose. Their ingestion leads to only low glycemic and insulinemic responses and therefore presents a significantly reduced risk, if any, of causing either rebound hypoglycaemia or persistent strong hyperglycaemia. A low insulinemic response is also known to promote a high rate of fatty acid mobilisation from adipose (fat) tissue resulting in a high rate of fatty acid oxidation in energy metabolism (Newsholme E.A., Leech A.R. (eds): Integration of carbohydrate and lipid metabolism. In: Biochemistry for the medical sciences. John Wiley & Sons, Chichester 1983, pp 336-35, Newsholme E. A., Start C. (eds): Adipose tissue and the regulation of fat metabolism. In: Regulation in Metabolism. John Wiley & Sons, Chichester 1973a, pp 195-246).
These features make glucopyranosyl tetritols an ideal alternative to other carbohydrates or sweeteners for use in:
- food, feed and drink compositions aimed at supporting physical and mental performance (e.g. in fitness/sports nutrition, infant nutrition, nutrition for the elderly, in so-called "brain foods" directed, for example, at students or people whose jobs require consistently high levels of concentration and/or alertness such as pilots);
- food, feed and drink compositions aimed at individuals requiring slow but continuous carbohydrate energy delivery, for example in conditions that require medical nutrition and/or enteral feeding (e.g. for cachexia patients, burn patients), or for post-operative nutrition;
- food, feed and drink compositions aimed at inducing satiety, reducing overall energy intake and/or increasing fat metabolism (e.g. slimming products, drinks for children, etc.); and - food, feed and drink compositions aimed at individuals suffering from particular metabolic disorders (such as diabetes, low glucose tolerance and metabolic syndrome (syndrome X) patients).
The present invention shall now be described by way of the following, non-limiting examples.
Examples
Example 1 : Synthesis of O-α-D-Glucopyranosyl erythritol
A mixture of 58 g water, 40 g erythritol, 100 g maltose and 2 g of transglucosidase (AMANO) was prepared. The pH was adjusted to 4.6 with hydrochloric acid. The mixture was then heated to 50°C for 24h. After filtration and passing through a strong cation exchanger followed by a weak anion exchanger (elution with demi-water), the syrup was vacuum concentrated to 35% dry substance.
The total yield of O-α-D-glucopyranosyl erythritol was 18% as compared to the starting materials (using HPLC analysis).
Example 2: Purification of O-α-D-glucopyranosyl erythritol
5ml of the mixture obtained in Example 1 was diluted to 25% Brix and loaded on 1.51 Bio-Gel Polyacrylamide P2-fine (BIORAD) resin and eluted with demineralised water at 1.5ml/min at room temperature. 170mg O-α-D-glucopyranosyl erythritol was obtained at a purity of 86%.
Example 3: In-vitro digestibility of O-α-D-glucopyranosyl erythritol
The enriched O-α-D-glucopyranosyl erythritol of Example 2 was used as substrate in in-vitro digestibility studies. 1% substrate solutions (w/w) of maltose (from Merck), isomaltulose (from ICN) and O-α-D-glucopyranosyl erythritol were prepared in a 0.05 M phosphate buffer at pH 6 and equilibrated at 37°C for 10 minutes. A suspension of 30% rat intestinal acetone powder (supplied by Sigma) was prepared in 0.05M phosphate buffer (from Merck) at pH 6 and equilibrated at 37°C for 10 minutes.
0.6 ml rat intestinal acetone powder suspension was added to 6 ml of each of the substrate solutions and mixed. The mixtures were incubated at 37°C and a 1 ml sample was taken (0 hours incubation time). Further samples were taken after 2, 4 and 6 hours of incubation. The samples were diluted with 4 ml of demineralised water and boiled for 5 minutes. After the denaturation step, each sample was filtered through a 0.45 μm filter.
The filtrate was send through a Dionex OnGuard-ATM filter. Glucose content was determined by HPLC.
The results for the in-vitro small intestinal digestion tests for maltose, isomaltulose and O-α-D-glucopyranosyl erythritol are given in table 1.
Figure imgf000010_0001
Table 1 : Percent glucose liberated during in-vitro digestion
It is clear form these results that O-α-D-glucopyranosyl erythritol is digested, in-vitro, at a substantially lower rated than maltose. The digestion rate is in fact close to that of isomaltulose which is known in the art as being a sustained energy release carbohydrate.

Claims

Claims
1. Use of a glucopyranosyl tetritol in the preparation of a sustained energy release food, feed or drink composition.
2. Use according to claim 1 wherein the glucopyranosyl tetritol is selected from the group consisting of glucopyranosyl erythritol, glucopyranosyl D-threitol, glucopyranosyl L-threitol and mixtures of two or more thereof.
3. Use according to claim 1 or claim 2 wherein the glucopyranosyl tetritol is 1-0- α-D-glucopyranosyl erythritol.
4. Use according to any one of claims 1-3 wherein the glucopyranosyl tetritol is added in an amount of at least 5% by weight based on the total weight of the sustained energy release food, feed or drink composition.
5. A sustained energy release food, feed or drink composition characterised in that it comprises a glucopyranosyl tetritol.
6. Process for the preparation of a sustained energy release food, feed or drink composition characterised in that it comprises the step of adding a glucopyranosyl tetritol to said composition.
PCT/EP2006/003357 2005-04-15 2006-04-12 Sustained energy release compositions WO2006108626A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BRPI0608174-6A BRPI0608174A2 (en) 2005-04-15 2006-04-12 use of a glycopyranosyl tetritol, food composition, feed or prolonged energy release drink, and process for preparing it
EP06761896A EP1868450B1 (en) 2005-04-15 2006-04-12 Sustained energy release compositions
DE602006007969T DE602006007969D1 (en) 2005-04-15 2006-04-12 COMPOSITIONS FOR THE DELAYED ENERGY TRANSFER
JP2008505802A JP2008545620A (en) 2005-04-15 2006-04-12 Sustainable energy release composition
US11/911,649 US20080206423A1 (en) 2005-04-15 2006-04-12 Sustained Energy Release Compositions
PL06761896T PL1868450T3 (en) 2005-04-15 2006-04-12 Sustained energy release compositions

Applications Claiming Priority (2)

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EP05252368A EP1712139A1 (en) 2005-04-15 2005-04-15 Sustained energy release compositions
EP05252368.5 2005-04-15

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BR (1) BRPI0608174A2 (en)
DE (1) DE602006007969D1 (en)
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EP2098124A1 (en) 2008-03-03 2009-09-09 Nestec S.A. Carbohydrate gel
EP2332426A1 (en) * 2009-12-11 2011-06-15 Technische Universität Graz Prebiotic
EP2366292A1 (en) * 2010-03-15 2011-09-21 Nestec S.A. Artificial sweeteners and performance
DK3780975T3 (en) 2018-04-17 2022-10-31 Protea Biopharma N V COMPOSITION THAT ENSURES PROTECTION AGAINST FREE RADICALS AND PROVIDES CONTINUOUS RELEASE OF ENERGY

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EP1868450A1 (en) 2007-12-26
DE602006007969D1 (en) 2009-09-03
BRPI0608174A2 (en) 2010-11-09
EP1868450B1 (en) 2009-07-22
PL1868450T3 (en) 2010-01-29
EP1712139A1 (en) 2006-10-18
ES2326691T3 (en) 2009-10-16
US20080206423A1 (en) 2008-08-28

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